Maybe that's strange, but I looked everywhere and couldn't find the list of maps that are included in the ladder's mappool. Would anyone please list them for me?

Once you click on the "Challenge" link beside a player on the rankings page you will see a drop-down menu which contains the mappool

Sorry, I can't find the Challenge button:), maybe b/c I'm not registered. Can I still know which maps are played, please? Otherwise, it's like joining a ladder while being blind :).

ah, yes, sure. you will only have the Challenge link if you are logged in

The Mappool is:
nexdm03, nexdm05, nexdm07, nexdm09, nexdm10, nexdm14, nexdm18, nexdm18_1on1remix, nexdmextra1, nexdmextra2

Thank you.